Combination-valve for operating air-brake mechanisms



(No Model.) 2 Sheets-Sheet 1. T. H. HABERKORN.

COMBINATION VALVE POR- OPERATING AIR BRAKE MEGHANISM- No. 398,830.Patented Mar. 5, 1889.

2 SheetsSheet 2.

(No Model.)

T. H. HABERKORN. V

COMBINATION VALVE FOR OPERATING AIR BRAKE MECHANISM.

Patented Mar. 5, 1889.

J 7% HM IIVVENTOI? ArroR/vExr N. PETERS. Phum-unwgm mr. washin aon, 11.0

lJNiTED STATES PATENT OFFICE.

THEODORE ll. HABERKORN, 01 FORT \YA'YNE, INDIANA.

COMBINATlON-VALVE FOR OPERATING AIR-BRAKE MECHANISMS.

SPECI'EECATIQON forming part of Letters Patent No. 398,830, dated March5, 1889.

Application filed June 21,1888. Serial No. 277,738. (No model.)

for operating the air-brake mechanism, respectively, of the engine andtender and of the train, the arrangement being such that the mechanismof the engine and tender may be operated separatelyor may be operated inconnection with the mechanism of the brake mechanism of the train.

In the accompanying drawings, Figure 1 is a plan in section. Fig. 2 isan elevation in section. Figs. 3, at, and 5 are diagrammatic viewscorresponding with Fig. 1, but showing, respectively, the valve indifferent positions.

A represents the valve-casing, and B a pl ug- 1 valve operating therein.The casing is se cured to the engine-frame, and the valve is providedwith arod, D, on which are mounted levers D for operating the valve andpointer (Z, together with stationary dial (1, by means of which pointerand dial the position of the valve is indicated. 71 he location of theseparts is such that lever D maybe conveniently operated while theengineer is at his post.

Casing A has lateral openings or ports as follows: Port d opens into theatmosphere. Ports a connect with the pipe leading to the cylinder thatoperates the brake mechanism of the engine and tender. Ports (L2 connectwith the pipe leading to the main air-reservoir. Ports a?" connect witha train-pipe-that is, a pipe leading along the train and connecting withthe brake mechanism of each carby means of which air-pressure from themain reservoir is applied to the automatic mechanism of the differentbrakes of the train, whereby these different brakes are held inoperativeor off during such pressure, and which is known as the straight andautomatic airbrake system. The valve has ports 12,1), and

19 connected at the center of the valve and located substantially asshown. The valve has connected ports 2' and 11 and ports j and j, thelatter ports being also in open relation with each other.

I11 the position of the valve shown in Fig. 1, where the pointer is atzero, connection is had through ports a between the main airreservoirand the train-pipe; also, the air-cylinder of the engine may exhaustthrough ports 2' 1'; hence with the pointer at zero the brakes of thetrain and of the engine and tender are off. \Vhen the valve is turned tothe position shown in Fig. 3, with the pointer at mark 1, communicationbetween the main air-reservoir and the train pipe is not entirely outoff, and consequently the brakes of the train remain off; but with thepointer at 1 connection through ports i i is established between themain reservoir and the brake-cylinder of the engine, causing the brakesof the en gine and tender to be set. By turning the valve still fartheruntil the pointer is between marks 2 and 3, (see Fig. 1,) theair-cylinder of the engine will again exhaust through portsj j, andconsequently the brakes of the engine and tender are again. off. In thisposition of the valve communication between the trainpipe and mainreservoir is cut off; but the airpressure in the pipe remains, andconsequently the brakes of the train remain cit. If the pointer isadvanced to mark a, the valve will be in the position shown in Fig. 5,in which the air of the train-pipe will exhaust through ports a a thussetting the brakes of the train; also communication between the mainreservoir and the air-cylinder of the engine is established throughports j, in consequence of which the brakes of the engine and tender areset. To recapitulate: \Vith the pointer at zero, the brakes are all off.lVith the pointer at mark 1, the brakes of the engine and tender aloneare set. \Vith the pointer between marks 2 and 3, the brakes are againall oft". With the pointer at mark a, the brakes of the engine, tender,and train are all on. By reversing the valve to the starting-point, thebrakes will again be all off; or, if the valve is only reversed to theposit-ion shown in Fig. 3-that is, with pointer at mark 1-the engine andtender brakes will remain set. The en gineer has therefore only tomanipulate the lever D to operate the brakes of the engine and tenderand of the train at Will.

What I claim is- 1. In a valve for air-brake mechanism, the combination,with a valve-casing having ports connected, respectively, with thetrain-pipe, with the reservoir, and with the brake-cylinder, and a portleading to the outer air, of a valve located in said casing and providedwith three main ports forconnecting the reservoir and train-pipe and thetrain-pipe With the outer air, and tWo smaller ports for connecting thereservoir and engine-cylinder and the

